Merge branch 'apg-1.2' into 2019-11_WD

Incorporate final set of changes for APG 1.2 WD3.

Author: mcking65

.stylelintrc

@@ -0,0 +1,6 @@
+{
+  "rules": {
+    "media-feature-name-no-unknown": [true,
+    "ignoreMediaFeatureNames": ["forced-colors"] ]
+  }
+}